---
name: "MPI_Type_get_contents_c"
section: "3"
platform: "linux"
package: "mpich-doc"
version: "4.0.2-3"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/MPI_Type_get_contents_c"
---

# MPI\_Type\_get\_contents\_c(3)

get type contents

## NAME

MPI\_Type\_get\_contents\_c -  get type contents

## SYNOPSIS

```
int MPI_Type_get_contents_c(MPI_Datatype datatype, MPI_Count max_integers, MPI_Count max_addresses,
MPI_Count max_large_counts, MPI_Count max_datatypes,
int array_of_integers[], MPI_Aint array_of_addresses[],
MPI_Count array_of_large_counts[], MPI_Datatype array_of_datatypes[])
```

## INPUT PARAMETERS

- **datatype**

  \- datatype to access (handle) (handle)

- **max\_integers**

  \- number of elements in array\_of\_integers (non-negative integer) (non-negative integer)

- **max\_addresses**

  \- number of elements in array\_of\_addresses (non-negative integer) (non-negative integer)

- **max\_large\_counts**

  \- number of elements in array\_of\_large\_counts (non-negative integer)

- **max\_datatypes**

  \- number of elements in array\_of\_datatypes (non-negative integer) (non-negative integer)

## OUTPUT PARAMETERS

- **array\_of\_integers**

  \- contains integer arguments used in constructing datatype (integer) (integer)

- **array\_of\_addresses**

  \- contains address arguments used in constructing datatype (integer) (integer)

- **array\_of\_large\_counts**

  \- contains large count arguments used in constructing datatype (integer)

- **array\_of\_datatypes**

  \- contains datatype arguments used in constructing datatype (handle) (handle)

## NOTES FOR FORTRAN

All MPI routines in Fortran (except for  *MPI\_WTIME* and  *MPI\_WTICK* ) have an additional argument  *ierr* at the end of the argument list.   *ierr* is an integer and has the same meaning as the return value of the routine in C.  In Fortran, MPI routines are subroutines, and are invoked with the *call* statement.

All MPI objects (e.g.,  *MPI\_Datatype* ,  *MPI\_Comm* ) are of type  *INTEGER* in Fortran.

## ERRORS

All MPI routines (except  *MPI\_Wtime* and  *MPI\_Wtick* ) return an error value; C routines as the value of the function and Fortran routines in the last argument.  Before the value is returned, the current MPI error handler is called.  By default, this error handler aborts the MPI job.  The error handler may be changed with  *MPI\_Comm\_set\_errhandler* (for communicators), *MPI\_File\_set\_errhandler* (for files), and  *MPI\_Win\_set\_errhandler* (for RMA windows).  The MPI-1 routine  *MPI\_Errhandler\_set* may be used but its use is deprecated.  The predefined error handler *MPI\_ERRORS\_RETURN* may be used to cause error values to be returned. Note that MPI does  **not** guarantee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible.

- **MPI\_SUCCESS**

  \- No error; MPI routine completed successfully.

- **MPI\_ERR\_ARG**

  \- Invalid argument.  Some argument is invalid and is not identified by a specific error class (e.g.,  *MPI\_ERR\_RANK* ).

- **MPI\_ERR\_TYPE**

  \- Invalid datatype argument.  Additionally, this error can occur if an uncommitted MPI\_Datatype (see  *MPI\_Type\_commit* ) is used in a communication call.

- **MPI\_ERR\_OTHER**

  \- Other error; use  *MPI\_Error\_string* to get more information about this error code.